Growing community of inventors

Kanagawa, Japan

Ryogo Katayama

Average Co-Inventor Count = 2.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 3

Ryogo KatayamaTeruyasu Hanagami (1 patent)Ryogo KatayamaRyogo Katayama (1 patent)Teruyasu HanagamiTeruyasu Hanagami (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (1 from 58,130 patents)


1 patent:

1. 6786659 - Printing apparatus and color adjusting method

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12/29/2025
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